Nuprol ACOG 4 X 32 + DR SIGHT Black A full metal robust replica of an ACOG with back up DR Sight that will fit onto any 20mm rail. Range finding cross hairs with fully adjustable brightness, windage and elevation. 4x Magnification 32mm Objective Lens Modern Range Finding Crosshair Backup Red Dot Doctor Sight Backup Iron sight Black. Same Day Dispatch On All Orders Placed Before 3pm Monday - Friday.